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Simple Machines and Complex Machines
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Simple Machines and Complex Machines
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Simple machine
Is a tool that helps us to work more easily and quickly
Types of simple machines
Wheel and axle, lever , screw, gear, pulley, inclined planes & wedge
Wheel and axle
Is a tool that consists of a wheel fixed on a rod called an axle
Screw
Is a grooved cylindrical tool that can be inserted into objects by rotating it to unite or tighten two parts of an object
Gear
Is a tool that consists of jogged wheels
Pulley
A tool that consists of a wheel with a groove that allows a rope to pass through it to lift or lower a load
Inclined planes
Is a tilted flat surface that has one of its ends at a different height
Wedge
Is a tool that has one pointed end and is used to cut, hold, and stop an object
Complex machine
A tool that consist of a combination of more than one simple machine
Sustainable complex machine
Are machines that have sustainable characteristic such as durability, not easily damaged, profitable, do not harm the environment, easy and safe to use
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